Samuel a



(No Model.)

S. A. GOULD. FOOT POWER MACHINE.

N0. 564,572. Patented July 21, 1896.

UNITED STATES PATENT OFFICE.

SAMUEL A. GOULD, OF CHICAGO, ILLINOIS, ASSIGNOR TO ROBERT S. FLEMING ANDJAMES B. DOBYNE, OF SAME PLACE.

FOOT-POWER MACHIN E.

SPECIFICATION forming part of Letters Patent No. 564,572, dated July 21,18 .56.

Application filed December 30, 1895. Serial No. 573,786. (No model.)

To all whom it may concern.-

Be it known that I, SAMUEL A. GOULD, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Foot-Power Machines; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention consists in the employment of a peculiar arrangement inthe form of a system of compound levers between the treadles and theshaft, transmitting the motion and power to the machine to be operated.

Figure 1 is a front elevation; Fig. 2, a horizontal section on line 2,Fig. 1; and Fig. 3, a broken-away vertical section on line 3, Fig. 1.

A represents the difierent parts of the supporting frame or pedestal,which may be of any desired shape other than that shown.

The crank or driving-shaft B is provided with suitable journal-bearingsin the supporting-frame, the crank-arm C being mounted on one endthereof, as shown. To this crank-arm is connected one end of the shortarm D, by the pin a, the opposite end being pivoted to the inner end ofthe longer arm E by the pivot-pin a. The other end of the arm E ispivotally secured to the frame at one side by the pivot-pin a and at apoint somewhat higher than the crank-shaft, as shown in Fig. 1.

One end of the arm or'short link F is joined the arm F is connected tothe inner end of the rocking lever G, which in turn is pivotally securedat its longitudinal center to the frame by the pivot-pin b.

The foot-treadles H H are mounted on the rod d and connected to therespective ends of the rocking lever G by the links g g. The treadlesare set alternating. This arrangement forms a triangular connectionbetween the crank-shaft and the rocking lever G and operates somewhat onthe principle of a compound toggle system, increasing the leverage andto a certain extent lessening the loss of power in passing the centersor dead points. The machine may also be started when the crank is nearerto the centers than if the connection were direct.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

In a foot-power machine, the combination of the driving shaft and crankmounted thereon, the arm D, the arm E, the arm F, the rocking lever G,the treadles, and the links connecting the opposite ends of the rockinglever and treadles, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

SAMUEL A. GOULD.

Witnesses:

L. M. FREEMAN, L. B. OoUrLAND.

